epinium.com · Workflow & Planning
1 item
Alerts when a competitor wins the Amazon buybox on your products. Buybox Monitor for Vendor is a companion to your Epinium account. It automatically checks your Amazon product pages and alerts you the moment a competitor wins the Buy Box on one of your listings — so you can react before losing sales. How it works • Sign in with your Epinium account. • The extension pulls your vendor catalog and checks each product's Buy Box across your marketplaces. • You get a clear list of the products where a competitor (not your brand or Amazon) currently holds the Buy Box, along with the winning seller. • Run a check on demand, or schedule an automatic daily check. • Export the results to CSV. Built for Amazon vendors who need to protect their Buy Box. Requires an Epinium account with the Buybox Monitor feature enabled.
Jul 10, 2026
rating_count is the Chrome Web Store ratings count, not a written-review count.
Media assets
Screenshots and videos on the listing.
Has promo video
Whether the listing includes at least one video.
Languages
Declared language locales.
Developer website
Listing exposes a developer website URL.
Contact email
Listing exposes a contact email.
Keyword in name
Case-insensitive substring match in the name.
Keyword in description
Case-insensitive substring match in the description.
Keyword occurrences in description
Count of case-insensitive occurrences in the description.
Category user-count percentile
Share of same-category extensions with fewer users (null if unknown).
These are transparent listing completeness / keyword signals, not a prediction of Chrome Web Store search ranking.